Richard L

The HFS-5 will not be manufactured anymore as from this month, making way for the HFS-6 arrival very soon.

We are sorry for the gap between the change-over.

Will post details of the HFS6

calculon

iTrader: (29)

Eagerly awaiting more info. . .loving the HFS-5. Hopefully it doesn't become antiquated enough that I feel provoked to upgrade. I don't think my wallet can stand it

Howard Coleman

iTrader: (6)

we look forward to it. pls post something in my central AI thread in the 3rd gen section.

regards,

howard

Richard L

Just got a quick close-up shot of the controller...

Richard L

I have not yet planned an upgrade path. The HFS-6 is very differerent from the HFS-5, I don't think it is economically viable to ditch 90% of the components on the HFS-5.

As seen in the picture below, the entire system is based on four network type harnesses (not counting the gauge). There will not be anymore screw terminal connectors as on the DDS3 junction box.



The HFS-6 should reduce installation time considerably. I will go through the system one step at a time as more questions are posted.

Richard L

Howard, I will do it. Can you give a help with a link?

Richard

Howard Coleman

iTrader: (6)

richard,

PM'd you. BTW, 'Love the output port for EBAY on your module...

howard

Richard L

It will have to be changed to ENG.BAY

TimeMachine

iTrader: (10)

Will this system use a summer for the RX-7 like the previous system?

Richard L

This system can accept signal from the summer. Unfortunately it doesn't have a an extra user scalable channel perform summing.

I should really have considered this when we designed the system. May be giving a small discount when purchased with the HFS-6.

Here is the basic wiring diagram:

TimeMachine

iTrader: (10)

Wow, this wiring diagram is so simple compared to the HFS-5. However, the only input I see to PWM the nozzle comes from the ECU. Is that correct? I guess I should say, what's the primary input driver if not the summer?

Richard L

Instead of a using a table of cells, we have decided to calculate the values so that we can obtain almost infinite resolutions.

It is done with a series of potentiometers.



If anyone is intersted, I can post more details.

TimeMachine

iTrader: (10)

Yes, details please, I am very interested in this system. What inputs are being extracted from the ECU?

Richard L

The primary input for the unit is FIDC. But will accept MAP sensor voltage to compensate the flow decrease due to opposing manifold pressure. User can swap those two signals around as to which one becomes the primary.

The blue harness's primary output is to control the inline solenoid valve.

We are basically splitting the four coloured harnesses to separate area of the car.

Richard L

The settings are very simple:

- Green led = FIDC monitoring
- Amber led = WI commences
- Red led = Maximum WIDC is reached.

I will explain more later regarding the potentiometers. If untouched (12 o'clock), the HFS-6 be the same as the HFS-5

thewird

iTrader: (8)

So this new system doesn't work with the summer? Did you read my PM?

thewird

TimeMachine

iTrader: (10)

So the summer can be used solely to provide a 0-5v input to the HFS-6 system? Are you able to offer us a product that's sole purpose is to sum the two injectors and output a 0-5v?

Richard L

The summer can provide a 0-5V to the H6's analogue input (0-5V) or drive the HFS-6's IDC input directly.

The summer can also be used as a stand-alone system to drive a high speed valve.

Most users use the summed 0-5V output (Pri+Sec) for their third part WAI system. No objection to that. Totally scaleable internally. It is a $120 add-on.

Richard L

How do you guys rate the importance of a failsafe on an WAI system? Mildly helpful or useless?

Richard L

Please read above.

Howard Coleman

iTrader: (6)

"The primary input for the unit is FIDC."

i assume FIDC is fuel injector duty cycle. correct?

will the HFS-6 read the total injector duty cycle of the FD 3rd Gen RX7 without a summer?

howard

Richard L

Howard,

You are correct, FIDC is exactly what you described.

H6 can only read one channel of FIDC. Only the summer can do two. The summing is quiet involved because you need to specify injector sizes. This takes circuit board size.

neit_jnf

iTrader: (17)

Yep, this is what I'm doing. Summer 0-5V output to another kit's controller.

Thanks Richard!

calculon

iTrader: (29)

As an HFS-5 owner, I'd recommend ANYBODY considering AI to look at doing business with Richard. Not only is the product line OUTSTANDING in term of manufacture, appearance, and functionality, but Richard provides some of the best customer service I've ever received from any company. He has, on a number of occasions, answered questions (some of which were probably more like just mundane nagging ) personally until the issue was crystal clear. Responses were in a timely fashion to say the least.

This is NOT meant to be a mark AGAINST any other company. I'm sure others have fine products and perhaps excellent customer service as well.

This is just to share one customer's enthusiasm with a company and its product. Aquamist is definitely a step above, in all regards, in my mind.

Richard L

Do not know that the summer has a power drive output (1A+) that will drive an inline solenoid valve directly. Al you need is a pump, valve and a hoob switch.


You have absolute control of final flow with the following adjustment

1. Scaling of the priminary fuel injector signal
2. Scaling of the Secondary fuel injector signal
3. Summing of the above to PWM the valve.

By playing with the scaling of each, you can custom your flow. It is a pity that only a small portion on the capability is utilised by many. I understand that you already have a set up that is not capable of reading and summing the fuel signals.